Frost dates in Chewelah, WA

The average last spring frost in Chewelah is around May 24 and the first fall frost is around September 11. That gives Chewelah an average growing season of about 110 days.

Last spring frost

Early (10% chance after)May 4
Average (50%)May 24
Late (90%)June 30

First fall frost

Early (10%)August 17
Average (50%)September 11
Late (90% chance before)October 1

See the Chewelah planting calendar →